Offshore Wells (WGS84)

<p><span style='color:inherit; font-size:inherit; font-family:var(--fontsBaseFamily),Avenir Next;'>A wellbore is a path of drilled footage from the Well Origin to a terminating point. The location of each wellbore is the wellbore’s well origin. A well origin is the location on the surface of the earth or sea bed where the drill bit penetrates the earth to establish or rework a well. Definitions for wellbore and well origin taken from PPDM ‘what is a well’: https://whatisawell.ppdm.org/.</span><br /></p><p>Data collection starts once a well has been spudded when the operator submits a spud notification on WONS. The NSTA will issue an official well number via WONS, which is to be used for all data and records resulting from the well’s drilling.<br />All well data requirements are set out in the documents Petroleum Operations Notices (PON) 9 (offshore) and PON 9b (onshore). <br />Onshore operators have a statutory obligation to also supply well data to the British Geological Survey (BGS). Visit the BGS website for more information.</p><div><span style='font-family:&quot;Avenir Next&quot;, &quot;Avenir Next&quot;; font-size:16px;'>Well Bottom Hole is the bottom hole location of the borehole at its final measured total depth.</span><br /></div><div><font face='Avenir Next, Avenir Next'><span style='font-size:16px;'>Top Hole - Bottom Hole, Straight Line Connection is a straight line&nbsp;connection&nbsp;from the top hole location and bottom hole location, it is not a wellbore path.</span></font></div>井筒（wellbore）是从井源头（well origin）至终钻点的钻进进尺路径。每一口井筒的位置即为该井筒的井源头。井源头是指在地表或海床处，钻头钻入地层以新建或翻新油气井的位置。井筒与井源头的定义取自PPDM发布的《何为油气井》：https://whatisawell.ppdm.org/。 数据采集始于油气井开钻之时，此时作业方需通过WONS提交开钻通知书（spud notification）。NSTA将通过WONS发放官方井号，该井号将用于该井钻井作业产生的全部数据与记录。 所有油气井数据要求均在《石油作业公告（PON）》第9号（海上作业适用）与第9b号（陆上作业适用）中作出明确规定。 陆上作业方还负有法定义务，需向英国地质调查局（BGS）提交油气井数据。如需获取更多信息，请访问BGS官方网站。 井底（Well Bottom Hole）指井筒在最终实测总井深处的井底位置。 井口-井底直线连接（Top Hole - Bottom Hole, Straight Line Connection）指从井口位置至井底位置的直线连接，并非井筒的实际钻进路径。