| The first step of reservoir reconstruction and control mining technology in PetroChina Bohai drillin |
| In November 2nd, Bohai Drilling Engineering Institute successfully implemented in Changqing Sulige gas field well Su 75-60-34H 7 ball sliding sleeve fracturing and 3 switch sliding sleeve fracturing construction, will be the first open hole staged fracturing technology and selective fracturing technology in combination, realize the true sense of the infinite level, can choose, scale, control the staged reservoir stimulation and control mining technology, to fill the domestic blank in the field of technology.
Selective fracturing and composite control mining technology has many technical advantages, according to the reservoir properties and production needs, guarantee the long horizontal section pipe string running, improve the infinite level of large-scale fracturing effectiveness, the possible questions such as formation water reservoir effective control, and for the pitching sliding sleeve fracturing by series limit, continuous the tubing fracturing operation by technical defect depth limit, truly unlimited segment reservoir reconstruction and control mining, greatly improve the efficiency and benefit of reservoir reconstruction. The success of research and development of this technology indicates that the drilling technology of Bohai reservoir has reached the leading level in china. During the construction of Su 75-60-34H well, the Bohai Drilling Engineering Institute successfully opened and closed the slip sleeves at various levels, and created a new record of the similar pipe string reservoir reconstruction technology in Sulige gas field.
| | | Published at: 2017-10-09 08:48:02 |  |
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