Downhole Separation as a Strategic Water and Environmental Management Tool

Abstract

Our work has attracted landscape analysis as a tool for the strategic environmental assessment of the Ain Dalia water body in northeastern Algeria. The use of the combined method which combines two approaches, one called "user" or visual, based on the assessment of the visual fields and the other called "expert", based on a quantitative method of the different sub-units that make up our site study. The results inherent in the two methods used clearly converged. It follows that the values of the quantized views are totally in line with the qualitative or visual method.

Recovery of Fresh Water Resources from Desalination of Brine Produced During Oil and Gas Production Operations

“…16 "Economic growth, the alleviation of poverty, and sound environmental management are mutually consistent to these objectives" are some of the underlying principles of sustainable development that have also been mentioned in the Brundtland Commission's report. 34 These are some of the criteria that have to be addressed for the sustainable development of communities.…”

“…Subsurface Water Shut Off: Subsurface water shut off from the water producing zones and downhole oil/water separation [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] are some of the methods to stop water production. Water shut off in multi-perforated zones in the well can be used as a means to reduce the water production.…”

“…(Most often in Texas however, the option is brine injection back into the producing formation.) Management of water issues is a major emphasis of the DOE's Oil and Gas Environmental Program administered by the National Energy Technology Laboratory's National Petroleum Technology Office [16]. Water issues include several concerns: injection water, produced water (including Coalbed Natural Gas-CBNG) and its effects on the environment, treatment of waste water, and the availability of water in arid lands.…”

“…Regulatory and monetary constraints often limit the options available to the operator. Subsurface water shut off and downhole oil/water separation [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] are some of the methods to stop water production. Other methods of water management include using the produced water for pressure maintenance of the reservoir or for enhanced oil recovery (EOR) purposes on the same or nearby field.…”

A Review of Downhole Separation Technology

“…DOWS presents a viable option in surface facilities de-bottlenecking projects, especially in fields that are far from processing facilities, as it provides extra capacity for the production of additional oil and gas due to the reduced surface volume of produced water. [4][5][6][7] 4. DOWS reduces environmental impact of oil and gas operations as it minimizes the opportunity for contamination of the surface land and waters through spillage and surface leaks and underground sources of drinking water through leaks in tubing and casing during the surface injection process.…”