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Sinopec News Network reported on October 14, Xinsha 24-15HF well of Southwest Oil & Gas Company used the "large-scale + large displacement + variable viscosity fracturing fluid" volume fracturing technology for fracturing test, and the oil pressure was stable at 8.
76 The daily production of 65,000 cubic meters of natural gas under megapascals proved that there is room for further improvement in the development potential of the middle and shallow layers in the old areas of western Sichuan under the new engineering conditions
.
In the development work of the old area of the Xinchang Shaximiao Formation gas reservoir, the Southwest Oil and Gas Branch deployed Xinsha 24 in the northern part of the Shangshaximiao Formation gas reservoir in the Xinchang gas field based on the deployment principle of “improving well pattern control and producing remaining reserves”.
-15HF infill adjustment well.
The horizontal section of the well was drilled at 585.
87m, and the horizontal section sand body drilling rate was 100%.
The volume fracturing technology of "large scale + large displacement + variable viscosity fracturing fluid" was adopted to improve fracture complexity , Increase the reservoir drainage area and reform volume
.
After 30 years of development, the Xinchang Shaximiao Formation gas reservoir has entered the middle and late stages of exploitation.
The evaluation and production target areas are becoming more and more complex, the scale of difficult-to-produce reserves is becoming more and more difficult, and the benefit development of gas fields is facing more and more difficult challenges
.
In recent years, through continuous research and technological innovation, especially technological breakthroughs and conceptual changes in the integration of modeling, digital and modeling, and integration of geology and engineering, the focus has been on the difficulty of identifying favorable reservoirs, the complex distribution of formation water, and the degree of reserve production.
In the next step, Southwest Oil and Gas Branch will continue to deepen research, continue to carry out fine description of gas reservoirs, and comprehensively comb the development potential of Shaximiao Formation gas reservoirs in conjunction with breakthroughs in new engineering technology, achieve high-quality deployment, and support the continued stable production and efficiency of gas fields in old areas
.
(Zhou Feng)
