How can new technology be designed, or existing technology be used in a new way, to improve performance and reduce costs? This is a question every operator asks in an increasingly competitive market. With a successful horizontal development program in the Giddings Field in 1990 and 1991, Texaco's Horizontal Drilling Team searched for answers to this question while expanding the program to the Brookeland Field in Newton Co., Texas. The "Dual Lateral" concept was being used in other areas, but this was the first time Texaco would try this wellbore design - and in a wildcat area. Planning aspects, the drilling operation and subsequent remedial operations will be reviewed. Production results and some conclusions as to the feasibility of drilling the dual laterals will also be presented. INTRODUCTION: The Austin Chalk trend is a fractured carbonate 30 to 35 miles wide and runs from northern Mexico to southern Mississippi. Texaco's East Region onshore horizontal drilling experience began in July 1990 in the Pearsall Field, Frio Co., Texas. In 1991, our efforts were concentrated primarily in the Giddings Field to the northeast in Burleson Co. In 1992, as our efforts continued in the Giddings Field, we also expanded our program further east 'in the trend into the Brookeland Field. The East Region's onshore Exploration and Production Divisions have drilled a total of forty-one (41) horizontal wells as of March 1993: 3 Austin Chalk wells in Pearsall 19 Austin Chalk wells in Giddings 8 Georgetown (fractured carbonate) wells in Giddings 2 Pittsburgh (sandstone) wells in New Hope 8 Dual Lateral Austin Chalk wells in Brookeland 1 Single Lateral Austin Chalk well in Brookeland The Brookeland Field, as stated, is located in Newton Co., Tx. P. 419^
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