Aluminum-Based HPWBM Successfully Replaces Oil-Based Mud To Drill Exploratory Wells in an Environmentally Sensitive Area

Ramirez, Mario Alfredo; Sanchez, G.; Sarmiento, Oscar Enrique Preciado; Santamaria, Joaquin; Luna, Edgar

doi:10.2118/94437-ms

Cited by 14 publications

(8 citation statements)

References 9 publications

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“…(Marin, J., 2009;Cameron, C., 2001;Hodder, M., 2006;Ramirez, M.A., 2005). This kind of drilling fluid demonstrated excellent performance and also contributed to the project success by minimizing non-productive time (NPT) and costs related to fluid/cuttings disposal.…”

Section: Design Of Drilling Fluid For 12 1/4 In Sectionmentioning

confidence: 99%

Design of Water-based Drilling Fluids for an Extended Reach Well with a Horizontal Displacement of 8000m Located in Liuhua Oilfield

Jin

Geng

et al. 2010

All Days

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Design of drilling fluids is crucial to extended reach drilling (ERD) with the challenges including borehole stability, hole cleaning, lubricity and equivalent circulating density (ECD) management. Normally, oil-based drilling fluids would be the best choice for an extended reach well with a horizontal displacement of 8000m. However, the Liuhua Oilfield is located in the South China Sea, an environmentally sensitive area. It is necessary to develop the high performance water-based drilling fluids which offer the performance to match oil-based drilling fluids.The integrated design proposal of water-based drilling fluids for the well Liuhua 11-1-B3 ERW4 with a horizontal displacement of 8000m (26247ft) is discussed in this paper, including design criteria, the formulations and the parameters of performance of the drilling fluids in each interval of the well. The more attention is paid to the 12 1/4-in. open hole section, where a kind of high performance water-based mud (HPWBM) is prepared. The two newly developed chemical additives, an amine polymer and an aluminum complex, are added in the KCl/polymer drilling fluid which was successfully used in the extended reach wells with a horizontal displacement of 6000m in this oilfield. In addition, a membrane-forming agent is added in this mud system and an optimized combination of lubricants was used to improve the lubricity of the drilling fluid.Numerous experiments were conducted to evaluate the various properties of this novel water-based drilling fluid. The experimental results indicate that it has excellent rheological properties, very low filtration rate, good lubricity and strongly inhibitive character to shale, which are very close to the commonly used oil-based drilling fluids.The results of risk analysis show that the design proposal of this water-based drilling fluid is feasible and can meet the drilling requirements of ERD with a horizontal displacement of 8000m open hole section in this area with less pollution of the sea and without increasing more cost.

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Section: Design Of Drilling Fluid For 12 1/4 In Sectionmentioning

confidence: 99%

Design of Water-based Drilling Fluids for an Extended Reach Well with a Horizontal Displacement of 8000m Located in Liuhua Oilfield

Jin

Geng

et al. 2010

All Days

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“…Ostatnio zaproponowano wiele rozwiązań stabilizowania formacji łupkowych, między innymi stosowanie w składach płuczek wiertniczych węglanu wapnia o różnym stopniu granulacji, asfaltenów, poliglikoli czy akrylanów [3,5,13,17,20]. Badania prowadzone w celu ograniczenia ciśnienia porowego skał łupkowych wykazały, że stosowane środki w płuczkach wiertniczych, takie jak zmodyfikowany węglan wapnia, akrylany i polimery, nie zapobiegają wzrostowi ciśnienia porowego z uwagi na zbyt duże rozmiary, niedostosowane do wielkości porów skały łupkowej (< 0,01 μm).…”

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“…Lateks w zaczynie cementowym służy głównie do kontrolowania filtracji oraz ograniczania migracji gazu. W składach płuczek wiertniczych dodatek lateksu powinien wpływać na zmniejszenie filtracji poprzez wytwarzanie na powierzchni skał łupkowych odkształcalnego uszczelnienia, ograniczającego wzrost ciśnienia porowego skał łupkowych [1, 6,11,13,21].…”

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Płuczki lateksowo-glinowe do przewiercania niestabilnych formacji łupkowych

Błaż¹,

Badawczy²

2018

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Niestabilność otworu jest jednym z poważniejszych problemów w przemyśle wiertniczym i decydującym czynnikiem wpływającym na zwiększenie kosztów wiercenia. Pomimo postępu technologii wiercenia niestabilność łupków nadal stanowi wyzwanie, w szczególności podczas wiercenia długich odcinków horyzontalnych otworu. W celu zapobiegania niekorzystnym zjawiskom w składach płuczek wiertniczych wykorzystuje się środki chemiczne pełniące funkcję inhibitorów hydratacji skał ilasto-łupkowych. W niektórych przypadkach nawet zastosowanie skutecznych inhibitorów hydratacji skał łupkowych nie zabezpiecza przed zmniejszeniem ich stabilności wskutek działania zbyt wysokiego ciśnienia porowego PPT. Zmniejszenie ciśnienia, pod jakim filtrat z płuczki wiertniczej wnika w pory przewiercanych skał, jest jednym z najważniejszych czynników decydujących o zachowaniu stabilności otworu. W artykule przedstawiono badania laboratoryjne nad opracowaniem składu płuczki wiertniczej zdolnej do tworzenia w przewiercanych niestabilnych i sypliwych formacjach łupkowych szczelnego i odkształcalnego osadu filtracyjnego, przeciwdziałającego wnikaniu filtratu płuczkowego i ograniczającego wzrost ciśnienia porowego przewiercanej formacji skalnej. Stabilizacja przewiercanych formacji łupkowych realizowana będzie poprzez zastosowanie w składzie płuczki specjalnego zestawu środków chemicznych, obejmującego odpowiednio dobrane połączenie związków glinu z różnymi rodzajami lateksu i polimerami. Słowa kluczowe: płuczka wiertnicza, lateks, kompleks glinowy, niestabilność otworu. Latex-aluminum muds for instable shale formations drilling Drilling hole instability is one of the major problems in the drilling industry and the decisive factor in increasing the cost of drilling. Despite the progress of drilling technology, shale instability continues to be a challenge in the drilling industry, particularly during long horizontal drilling. In order to prevent unfavorable phenomena in the compositions of drilling muds, chemical substances acting as hydration inhibitors of shales are used. In some cases, even the use of effective shale hydration inhibitors does not prevent them from decreasing their stability due to too high pore pressure "PPT". Reducing the pressure at which the filtrate from the drilling fluid penetrates the pores of the drilled rocks, is one of the most important factors in maintaining the stability of the drilling hole. In this paper is presented, a laboratory study on the development of a drilling fluid composition capable of forming seal and deformable filter cake preventing the penetration of the mud filtrate and limiting the increase of the pore pressure of the drilled rock formation. Stabilization of drilled shale formations will be accomplished through the use of a special set of chemicals in the mud, including a combination of aluminum compounds with various types of latex and polymers.

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“…synthetic-based (SBM). Technically, OBM and SBM drilling fluids are the best suited for drilling shale formations because they don't interact with shale (Ramirez, et al 2005). They provide stability of borehole and cuttings, and efficient solids removal.…”

Section: Resistivitymentioning

confidence: 99%

“…Few published work related to aluminum/precipitating chemistry in drilling fluids, since pore pressure transmission measuring techniques have been only developed recently (Stowe, et al 2001) . Nonetheless, the aluminum chemistry in drilling fluids has been applied in Louisiana USA, Gulf of Mexico, South America, Norway, and Algeria (Halliday, et al 1993) (Ramirez, et al 2005 Hydration and pore-pressure transmission tests were performed on the samples with different drilling fluids. Their studies showed that the use of aluminum complex in water resulted in 12% hydration, whereas it was 50% in fresh water.…”

Section: Previous Workmentioning

confidence: 99%

The Incorporation of Aluminum Hydroxide in Water Based Muds to Stabilize Marcellus Shale Drilling in West Virginia

Al-Fadhel¹

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Thesis submitted to the College of Human Resources and Education at West Virginia University in partial fulfillment of the requirements for the degree of Master of Science in Petroleum and Natural Gas Engineering Hussain Ali Al-Fadhel The purpose of this study was to develop a safe and environmentally acceptable water base mud that will be able to suppress swelling and promote stability to the West Virginian Marcellus shale. The problem was approached by utilizing aluminum precipitation chemistry in the drilling fluid, unlike the traditional cation-exchange approach. A dynamic swelling meter was designed by modifying a 0.001 mm resolution dial indicator and using a specially programmed smart cable connecting the dial indicator to a computer. The swelling data was acquired by the smart cable every six seconds. As a result, there were 14,400 measured points for each sample for the 24 hours test duration.

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Aluminum-Based HPWBM Successfully Replaces Oil-Based Mud To Drill Exploratory Wells in an Environmentally Sensitive Area

Abstract: TX 75083-3836, U.S.A., fax 01-972-952-9435.

Cited by 14 publications

References 9 publications

Design of Water-based Drilling Fluids for an Extended Reach Well with a Horizontal Displacement of 8000m Located in Liuhua Oilfield

Design of Water-based Drilling Fluids for an Extended Reach Well with a Horizontal Displacement of 8000m Located in Liuhua Oilfield

Płuczki lateksowo-glinowe do przewiercania niestabilnych formacji łupkowych

The Incorporation of Aluminum Hydroxide in Water Based Muds to Stabilize Marcellus Shale Drilling in West Virginia

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