| 摘要 |
FIELD: oil production industry, particularly for constructing well in multihorizon field. ^ SUBSTANCE: method involves opening beds located above oil productive bed with the use of unaerated drilling mud having density more than necessary one to prevent blowout; opening productive bed with the use of aerated drilling mud having minimal density enough for drilling with blowout prevention, wherein polymer-carbonate mix is used as the drilling mud; performing deaeration of drilling mud by adding sodium tripolyphosphate to the drilling mud; opening beds located under oil productive one; forming drill sump and performing well flushing. One may change unaerated drilling mud into aerated one by adding soda ash and surfactant to non-aerated drilling mud upon productive bed reaching. ^ EFFECT: provision of selective affecting on beds. ^ 1 ex |
