井完整性/控制

地震后,处置井运营商被告知停止注入、减少注入

监管机构告诉一些靠近 4.0 级地震震中的注水井运营商,他们将不得不无限期停止作业。

地震仪和地震
资料来源:Petrovich9/Getty Images

4 月 7 日,监管机构告知卡尼附近 4 月 6 日发生的 4.0 级地震震中附近的一些注水井运营商,他们将不得不无限期停止作业。

俄克拉荷马州公司委员会的官员表示,该机构的石油和天然气保护部门还向附近其他处置井的所有者发出了一项指令,限制他们今后注入阿巴克尔地层的废水量。

不过,委员会官员表示,定向削减和关闭将在下个月逐步实施。

逐步变化的目的是防止地下压力突然变化,因为担心这些变化可能会增加另一场强地震的风险。

距地震震中 6 英里范围内的注水井操作人员被告知,在可预见的未来,他们将不得不完全关闭油井。

对于距地震发生地 6 至 10 英里范围内的油井所有者,过去 30 天内平均注入量为 500 B/D 或更少的油井将被允许继续作业,前提是不超过每日注入量。

过去 30 天内每天注入超过 500 B 桶的油井所有者必须将流量减少 50%。

在这里阅读完整的故事。

原文链接/jpt
Well integrity/control

Disposal Well Operators Told To Stop, Reduce Injections After Earthquakes

Regulators told some injection well operators close to the epicenter of a magnitude 4.0 earthquake that they will have to shut down their operations indefinitely.

Seismograph and earthquake
Source: Petrovich9/Getty Images

Regulators on 7 April told some injection well operators close to the epicenter of a magnitude 4.0 earthquake near Carney on 6 April that they will have to shut down their operations down indefinitely.

Officials with Oklahoma's Corporation Commission said the agency's Oil and Gas Conservation Division also issued a directive to owners of other nearby disposal wells to limit the amounts of waste water they inject into the Arbuckle formation moving forward.

Commission officials, however, said the directed reductions and shutins will be put into place gradually during the next month.

The gradual changes are intended to prevent suddenly changing subsurface pressures, based on worries those could increase the risk of another strong earthquake.

Injection well operators within 6 miles of the earthquake's epicenter are being told they will have to shut down their wells entirely for the foreseeable future.

For owners of wells between 6 and 10 miles from where the earthquake happened, those injecting an average of 500 B/D or less over the past 30 days will be allowed to continue operating, provided they don't exceed that daily volume.

Owners of wells injecting more than 500 B/D over the past 30 days will have to reduce flows by 50%.

Read the full story here.